* {
	padding:0;
	margin:0;
}
li {
	list-style:none;
	width:400px;
	height:300px;
	position:absolute;
	display:none;
}
img {
	width:400px;
	height:300px;
}
#box {
	width:400px;
	height:300px;
	border:1px solid red;
	position:relative;
	top:20px;
	left:20%;
}
#min {
	position:absolute;
	top:260px;
	left:160px;
}
span {
	display:inline-block;
	width:20px;
	height:20px;
	border-radius:50%;
	background:red;
	text-align:center;
	color:white;
}
a {
	position:absolute;
	width:50px;
	height:30px;
	border-radius:10px;
	background:blue;
	text-align:center;
	font-size:20px;
}
.left {
	top:140px;
}
.right {
	top:140px;
	left:350px;
}